An olympic sized pool (rho=1000 kg/m) is 50 m long by 25 m wide by 3 m deep. (a). find the hydrostatic force on each wall as well as the distance of line of action for the hydrostatic from the ground. (b). how does the hydrostatic force change if the height of the walls is doubled?

Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.